Patents
Sitemap › G11 - Information storage › G11B - Information storage based on relative movement between record carrier and transducer › G11B 5 - Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
Patents for G11B 5 - Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor (87,826)
10/1989
10/18/1989CN2046262U 磁带录音机 Tape recorder
10/17/1989US4875129 Inline magnetic head assembly for use in a cassette loaded recorder
10/17/1989US4875125 Tape head cleaner cartridge
10/17/1989US4875124 Thin film magnetic heads with thermally crosslinked insulation
10/17/1989US4875123 Adjustable audio control-eraser and tape guide assembly for a cassette tape video tape recorder
10/17/1989US4875122 Head transport assembly having simplified mutually independent positional adjustments
10/17/1989US4875121 Magnetic head supporting device
10/17/1989US4875120 Head driving apparatus with coarse and fine adjustments
10/17/1989US4875119 Head loading mechanism for flexible disc drive
10/17/1989US4875117 Digital head positioner assembly
10/17/1989US4875116 Transducer position control system for data transfer apparatus employing disklike record media
10/17/1989US4875114 System for detecting a reference track on a disk surface in a disc storage unit
10/17/1989US4875112 Compound pulse dimming circuitry for conditioning readback signals
10/17/1989US4875111 Apparatus for reproducing a digital signal
10/17/1989US4875110 Rotary head apparatus with motor magnet and yoke surrounding motor stator coil
10/17/1989US4874922 Granule vise for manufacturing a magnetic head core with a glass fillet adjacent the inner edge of the gap
10/17/1989US4874668 Magnetic powder and magnetic recording medium comprising the same
10/17/1989US4874637 Method of making thin film magnetic recording medium
10/17/1989US4874636 Controlling residual solvent by using hard binder and calendering when dried to predetermined concentration
10/17/1989US4874633 Method of producing magnetic recording medium
10/12/1989DE3910488A1 Lapping belt
10/11/1989EP0336624A2 Data reproducing apparatus
10/11/1989EP0336525A1 Method of forming recessed profile on ferrite single crystal by chemical etching
10/11/1989EP0336423A2 Magneto-optical disk device
10/11/1989EP0336422A2 Magnetic head carrier drum assembly
10/11/1989EP0336419A2 Apparatus and method for optical servo control with media having information storage and servo control regions of different reflectivities
10/11/1989EP0336395A2 Marker for detecting amount of working and process for producing thin film magnetic head
10/10/1989US4873599 Magnetic head assembly for perpendicular magnetic recording
10/10/1989US4873598 Mechanism for supporting and guiding a head carriage
10/10/1989US4873589 Data recorder and method
10/10/1989US4873587 Video signal reproducing apparatus with memory
10/10/1989US4873583 Magnetic tape recording/reproducing apparatus
10/10/1989US4873154 Nonmagnetic support having a thin ferromagnetic film; enhanced corrosion resistance; tapes
10/10/1989US4873138 Metallic thin film type magnetic recording medium
10/10/1989US4873129 Nonmagnetic substrate with two or more different magnetic films on the same surface of the substrate; accuracy
10/10/1989US4873010 For magnetic recording media
10/10/1989US4872618 Apparatus for winding coil on toroidal core
10/05/1989WO1989009467A1 Recording system having head transducers with controlled skew
10/05/1989WO1989009466A1 Bimodal multi-track magnetic head
10/05/1989DE3810037A1 Magnetic recording and reproducing apparatus
10/05/1989DE3810036A1 Circuit arrangement for the speech-recording of broadband signals onto magnetic tape
10/04/1989EP0335732A2 Head core slider for rigid magnetic disk drive and method of producing the same
10/04/1989EP0335655A2 Method and apparatus for detecting the mode of a frequency-modulated signal
10/04/1989EP0335568A2 Stepping motors
10/04/1989EP0335546A2 Off-set nulling system and method for computer disk drives
10/04/1989EP0335517A2 Servo address system
10/04/1989EP0335488A2 Magnetoresistive read transducer
10/04/1989EP0335259A2 Perpendicular magnetic storage medium
10/04/1989EP0335155A2 Method and arrangement for the display of superficial flaws in record carriers
10/04/1989CN2045538U Tape-recorder
10/03/1989US4872079 Thin film magnetic head with a leveler layer
10/03/1989US4872077 Recording and/or reproducing apparatus with adjustments for positioning head and a moving device using the same
10/03/1989US4872074 Data transducer position control system for rotating disk data storage equipment
10/03/1989US4872071 Method and apparatus for detecting abnormal operation of moving storage apparatus
10/03/1989US4872070 System and method for high speed video tape reproduction
10/03/1989US4871625 Synthetic lubricant for lubricating thin film and magnetic recording medium
10/03/1989US4871614 Opto-magnetic recording medium having three exchange-coupled magnetic layers
10/03/1989US4871606 Backing contains blend of hard and soft inorganic pigments in polymeric binder
10/03/1989US4871582 Method of manufacturing magnetic recording medium
10/03/1989US4870920 Process of smoothing a coated-layer and the apparatus for use in such method
09/1989
09/27/1989EP0334775A1 Coil switching device
09/27/1989EP0334661A2 Magnetic recording/reproducing apparatus
09/27/1989EP0334650A2 Low profile head-load beam slider arm for disk drive
09/27/1989EP0334602A2 A quaternary ammonium salt of an alkoxysilane as a dispersant for magnetic pigment
09/27/1989EP0334564A2 Penning type cathode for sputter coating
09/27/1989EP0334512A2 Magnetic head
09/27/1989EP0334488A2 Thin film media for high density longitudinal magnetic recording
09/27/1989EP0334487A2 Actuator assembly for a disk drive system and a process for making same
09/27/1989EP0334480A2 Magnetoresistive read transducer and a method for making it
09/27/1989EP0333843A1 Magnetic medium for longitudinal recording
09/27/1989EP0333828A1 Process for production of magnetic media
09/26/1989US4870703 Magnetic disc memory unit
09/26/1989US4870635 Precision measurement and positioning system for disk storage system
09/26/1989US4870524 Substrate for rigid disk storage media
09/26/1989US4870523 Magnetic head apparatus used for movable magnetic medium with head gap positioning
09/26/1989US4870522 Rotary electric coupling device for a rotating head recorder
09/26/1989US4870521 Floating magnetic head
09/26/1989US4870520 Read/write head with side winding slot
09/26/1989US4870519 Uniform flying height slider assembly with improved dynamic air bearing characteristics
09/26/1989US4870518 Removable cartridge disc drive with radial arm voice coil actuator
09/26/1989US4870513 Method and arrangement for the recording and playback of data
09/26/1989US4870510 Video signal reproducing apparatus using memory
09/26/1989US4870507 Video tape recorder system
09/26/1989US4869965 Process for the production of a magnetic recording medium
09/26/1989US4869797 Method for preparing a magnetic recording medium
09/26/1989US4869410 Magnetic tape container
09/26/1989US4869090 Method of processing base plate for magnetic disc
09/26/1989US4868972 Method for manufacturing a magnetic head for performing high density recording and reproducing
09/26/1989CA1261965A1 Video signal recording apparatus
09/26/1989CA1261964A1 Video tape recorders
09/26/1989CA1261465A1 Thin-film storage disk and method
09/26/1989CA1261181A1 Polyimide covered calender rolls
09/21/1989WO1989008965A1 Video recorder with fast foward and reverse
09/21/1989WO1989008914A1 Apparatus for writing data on a magneto-optic recording medium
09/21/1989WO1989008677A1 Polyphenylene sulfide film and process for its production
09/21/1989WO1989008552A1 Tape having a surface with a low coefficient of friction and long wear characteristics
09/21/1989DE3907846A1 Coating process
09/20/1989EP0333592A2 Data reproducing circuit for memory system and having equalizer generating two different equalizing signals used for data reproduction
09/20/1989EP0333531A1 Process for the production of a magnetic transducer consisting of several heads
09/20/1989EP0333462A2 Magneto-optical recording system having medium with domainless control layer
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